For more than 50 years, phase-shifting interferometry has been the technology of choice for high-precision surface form metrology instruments. These interferometers provide fast and reliable measurements of surface form error and transmitted wavefront of optical components, systems, and assemblies. From research environments to a wide range of industrial applications, laser interferometers offer high levels of data traceability for quality assurance and post-production analysis. They have become an integral part of the manufacturing process.

Zygo’s Qualifire represents a leap forward for laser interferometers by providing solutions to known challenges for instruments of this type.